Position: Home > DataSheet > Index U > UC3 Series > UC3524DWTRG4, UC3524NG4, UC3525A

Low Cost Custom Prototype PCB Manufacturer

UC3524DWTRG4, UC3524NG4, UC3525A

Table of contents:
Info of UC3524DWTRG4
Info of UC3524NG4
Info of UC3525A

UC3524DWTRG4, UC3524NG4, UC3525A Selling Leads, Datasheet

MFG:Texas Instruments Category:Integrated Circuits (ICs) Package Cooled:n/a D/C:09+

UC3524DWTRG4, UC3524NG4, UC3525A Picture

UC3524DWTRG4, UC3524NG4, UC3525A Datasheet download

Five Points

Part Number: UC3524DWTRG4

Category: Integrated Circuits (ICs)

MFG: Texas Instruments

Package Cooled: n/a

D/C: 09+

Description: UC3524NG4

Attentive hint

Want to post a buying lead? If you are not a member yet, please select the specific/related part number first and then fill the quantity and your contact details in the "Request for Quotation Form" on the left, and then click "Send RFQ".Your buying lead can then be posted, and the reliable suppliers will quote via our online message system or other channels soon.

How to buy ?

How long will receive a response.

Top Sellers:

TOP

UC3524DWTRG4 Parameters

Technical/Catalog Information	UC3524DWTRG4
Vendor	Texas Instruments
Category	Integrated Circuits (ICs)
PWM Type	Voltage Mode
Number of Outputs	2
Package / Case	*
Packaging	*
Duty Cycle	50%
Voltage - Supply	8 V ~ 40 V
Frequency-Max	450kHz
Buck	Yes
Boost	Yes
Flyback	Yes
Inverting	No
Doubler	No
Divider	No
Cuk	No
Isolated	No
Drawing Number	*
Operating Temperature	0°C ~ 70°C
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	UC3524DWTRG4 UC3524DWTRG4

UC3524NG4 Parameters

Technical/Catalog Information	UC3524NG4
Vendor	Texas Instruments
Category	Integrated Circuits (ICs)
PWM Type	Voltage Mode
Number of Outputs	2
Package / Case	*
Packaging	*
Duty Cycle	50%
Voltage - Supply	8 V ~ 40 V
Frequency-Max	450kHz
Buck	Yes
Boost	Yes
Flyback	Yes
Inverting	No
Doubler	No
Divider	No
Cuk	No
Isolated	No
Drawing Number	*
Operating Temperature	0°C ~ 70°C
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	UC3524NG4 UC3524NG4

UC3525A General Description

The UC1525A/1527A series of pulse width modulator integrated circuits are designed to offer improved performance and lowered external parts count when used in designing all types of switching power supplies. The on-chip +5.1V reference is trimmed to ±1% and the input common-mode range of the error amplifier includes the reference voltage, eliminating external resistors. A sync input to the oscillator allows multiple units to be slaved or a single unit to be synchronized to an external system clock. A single resistor between the C_T and the discharge terminals provides a wide range of dead-time adjustment. These devices also feature built-in soft-start circuitry with only an external timing capacitor required. A shutdown terminal controls both the soft-start circuitry and the output stages, providing instantaneous turn off through the PWM latch with pulsed shutdown, as well as soft-start recycle with longer shutdown commands. These functions are also controlled by an undervoltage lockout which keeps the outputs off and the soft-start capacitor discharged for sub-normal input voltages. This lockout circuitry includes approximately 500mV of hysteresis for jitter-free operation. Another feature of these PWM circuits is a latch following the comparator. Once a PWM pulse has been terminated for any reason, the outputs will remain off for the duration of the period. The latch is reset with each clock pulse. The output stages are totem-pole designs capable of sourcing or sinking in excess of 200mA. The UC1525A output stage features NOR logic, giving a LOW output for an OFF state. The UC1527A utilizes OR logic which results in a HIGH output level when OFF.

UC3525A Maximum Ratings

Supply Voltage, (+V_IN) . . . . . . . . . . . . . . . . . . . . . . . . . . . +40V
Collector Supply Voltage (V_C) . . . . . . . . . . . . . . . . . . . . . . +40V
Logic Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +5.5V
Analog Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +V_IN
Output Current, Source or Sink . . . . . . . . . . . . . . . . . . . 500mA
Reference Output Current . . . . . . . . . . . . . . . . . . . . . . . . 50mA
Oscillator Charging Current . . . . . . . . . . . . . . . . . . . . . . . . 5mA
Power Dissipation at T_A= +25°C (Note 2) . . . . . . . . 1000mW
Power Dissipation at T_C= +25°C (Note 2) . . . . . . . .. 2000mW
Operating Junction Temperature . . . . . . . . . -55°C to +150°C
Storage Temperature Range . . . . . . . . . . . . -65°C to +150°C
Lead Temperature (Soldering, 10 seconds). . . . . . . . . +300°C

Note 1: Values beyond which damage may occur.
Note 2: Consult packaging Section of Databook for thermal limitations and considerations of package.

UC3525A Features

· 8 to 35V Operation
· 5.1V Reference Trimmed to ±1%
· 100Hz to 500kHz Oscillator Range
· Separate Oscillator Sync Terminal
· Adjustable Deadtime Control
· Internal Soft-Start
· Pulse-by-Pulse Shutdown
· Input Undervoltage Lockout with Hysteresis
· Latching PWM to Prevent Multiple Pulses
· Dual Source/Sink Output Drivers

UC3525A Connection Diagram

Hotspot Suppliers Product

Product List A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0 1 2 3 4 5 6 7 8 9

MT58L64L18CT-10

Price: 4-6 USD

MT58L64L18CT-10 TQFP100
DL-7140-211M

Price: 5-6.5 USD

DL-7140-211M laser tube
74LVC74APG

Price: 4-5 USD

74LVC74APG - IC FLIP FLOP D-Type POS-EDG DUAL 14TSSOP
CY28346ZI-2

Price: 6.5-8 USD

CYPRESS - Clock Synthesizer with Differential CPU Outputs
PI5V330QEX

Price: 0.284-0.286 USD

PI5V330QEX Pericom Multiplexer Switch ICs
BSM300GA120DN2

Price: 1-2 USD

IGBT power module, Single switch, 1200 V, Collector-emitter voltage, 430A
SVA150XG04TB

Price: 1-2 USD

a-Si TFT-LCD, NEC, 228.096Hmm, 560V
PC354N1

Price: 0.124-0.2 USD

PC354N1T - Mini-flat Package, AC Input Type Photocoupler - Sharp Electrionic Components
RL1210JR-070R22L

Price: 0.177-0.178 USD

RL1210JR51-XX-BL - Thick Film Chip Resistor Low Ohmic - TAITRON Components Incorporated
STPS140A

Price: 0.053-0.055 USD

STPS140A - POWER SCHOTTKY RECTIFIER - STMicroelectronics
STA013

Price: 1.45-1.5 USD

STA013 - MPEG 2.5 LAYER III AUDIO DECODER - STMicroelectronics
SMBJ5347B

Price: 0.073-0.075 USD

SMBJ5347B - 5 Watt Surface Mount Silicon Zener Diodes - Micro Commercial Components